You need to implement an authentication method on SQL4. The TravelOnline database will be accessed through a Web services application. You need to make the authentication method as secure as possible.What should you do？（）

• A、Create an HTTP endpoint with NTLM authentication， and create a service principal name （SPN）.
• B、Create an HTTP endpoint with digest authentication， and create a service principal name （SPN）.
• C、Create an HTTP endpoint with integrated authentication， and create a service principal name （SPN）.
• D、Create an HTTP endpoint with Kerberos authentication.